SAMpy: a Fourier-plane pipeline for JWST/NIRISS aperture masking interferometry (and more!)

Stephanie Sallum; Shrishmoy Ray; Sasha Hinkley

doi:10.1117/12.2630401

26 August 2022 SAMpy: a Fourier-plane pipeline for JWST/NIRISS aperture masking interferometry (and more!)

Stephanie Sallum, Shrishmoy Ray, Sasha Hinkley

Proceedings Volume 12183, Optical and Infrared Interferometry and Imaging VIII; 121832M (2022) https://doi.org/10.1117/12.2630401
Event: SPIE Astronomical Telescopes + Instrumentation, 2022, Montréal, Québec, Canada

Conference Poster

Abstract

The JWST Early Release Science Program 1386: “High Contrast Imaging of Exoplanets and Exoplanetary Systems includes a NIRISS aperture masking interferometry (AMI) component to demonstrate achievable contrast in a deep observation. As part of this program, we have developed SAMpy: data reduction tools tailored for NIRISS AMI, which are also flexible enough for arbitrary masking setups (e.g. LBT/LMIRCam, Keck/NIRC2, VLT/SPHERE). SAMpy takes a Fourier-plane approach to processing AMI data, which we describe here. We detail the individual pipeline steps, including image pre-processing, calculation and calibration of Fourier observables, OIFITS file generation, and model fitting. We also demonstrate SAMpy on NIRISS commissioning observations of the AB Dor system.

Citation Download Citation

Stephanie Sallum, Shrishmoy Ray, and Sasha Hinkley "SAMpy: a Fourier-plane pipeline for JWST/NIRISS aperture masking interferometry (and more!)", Proc. SPIE 12183, Optical and Infrared Interferometry and Imaging VIII, 121832M (26 August 2022); https://doi.org/10.1117/12.2630401

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